Images TG Α Β

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Tg α β. Tgα:(tg2α−tgα). Tgα+tgβ. Tg2a ctg2a. Tgβ, если sinβ=− 6 √37 и β∈(π; 3π 2 ).
Tgα:(tg2α−tgα). Tgα+tgβ. Tg2a ctg2a. Tgβ, если sinβ=− 6 √37 и β∈(π; 3π 2 ).

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